We're dividing 488985 by 12 
We want to divide 488985 by 12.

Going ahead to step 1:
4 divided by 12 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 12

Advancing to step 2:
If we divide 48 by 12, we get 4 and a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 0 after subtracting 48 from 48.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 12

Advancing to step 3:
8 divided by 12 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 40.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 12

Advancing to step 4:
12 can be fit into 89 7 times, resulting in a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 407.0
Subtract 84 from 89 to get 5.
Append the next digit (8) from the dividend to 5 and continue with: 58 / 12

Moving on to step 5:
12 can be fit into 58 4 times, resulting in a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 4074.0
The remainder is 10 after subtracting 48 from 58.
Bring next digit (5) of the dividend behind the 10 and repeat the process: 105 / 12

Let's proceed to step 6:
105 divided by 12 is 8 with a remainder of 9.
Write down 8 as next digit of the result. 
Result so far: 40748.0
The remainder is 9 after subtracting 96 from 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
12 goes into 90 7 times with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 40748.7
If we subtract 84 from 90, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 8:
12 goes into 60 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 40748.75
If we subtract 60 from 60, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
0 divided by 12 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 40748.75
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
0 divided by 12 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 40748.75
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 40748.75 and a remainder of 0.0.